There was a heavy police presence during Saturday's unauthorized rallies in Tunis. Demonstrators demanded the resignation of parliament; many of them were not wearing face masks, according to video footage released by radio Mosaique FM.
The protests in Tunisia come a decade after the Jasmine Revolution, which led to the ousting of long-time leader Zine El Abidine Ben Ali on January 14, 2011.
Alleged videos of Saturday's protests were being shared online as the events unfolded.
Last weekend, Tunisian police detained more than 870 protesters amid demonstrations in over 15 cities. Police reportedly used tear gas to disperse protesters in Tunis earlier this month.
According to Tunisian media reports, most of the protesters are young people who have been blocking traffic, using fireworks against police and burning tires and trash cans.